Thermal stability of small He-vacancy clusters in 316L stainless steel irradiated with 2.5 MeV He+ ions at 550 degrees C
文献类型：会议论文
| 作者 | Zhang, CH; Chen, KQ; Wang, YS; Sun, JG |
| 出版日期 | 1998-02 |
| 关键词 | He-vacancy cluster He-ion irradiation migration and coalescence |
| 卷号 | 135 |
| 期号 | 1-4 |
| 页码 | 256-259 |
| 英文摘要 | In this work, temperature-variation irradiations were performed with 2.5 MeV He+ ions in order to study thermal stability of small He-vacancy clusters in 316L stainless steel at 550 degrees C. One specimen was irradiated at 300 degrees C to a low dose of 6 x 10(18) ions/m(2), and was subsequently irradiated at 550 degrees C to a high dose of 2.5 x 10(21) ions/m(2). For comparison, two other specimens were irradiated to the same high dose of 2.5 x 10(21) ions/m(2) at constant temperatures of 300 degrees C and 550 degrees C, respectively. Microstructures were investigated with cross-section transmission electron microscopy (XTEM) after irradiation. It is found that the pre-irradiation at 300 degrees C increases significantly the number density of He-vacancy clusters in the subsequent irradiation at 550 degrees C even if the dose of the pre-irradiation is low, indicating that the small He-vacancy clusters formed by the pre-irradiation are very stable in the subsequent irradiation at 550 degrees C, with a migration coefficient smaller than 1 x 10(-18) m(2)/s. (C) 1998 Elsevier Science B.V. |
| 会议录 | NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
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| 会议录出版者 | ELSEVIER SCIENCE BV |
| 会议录出版地 | PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS |
| 语种 | 英语 |
| WOS研究方向 | Instruments & Instrumentation ; Nuclear Science & Technology ; Physics |
| WOS记录号 | WOS:000074395300046 |
| 源URL | [http://119.78.100.186/handle/113462/57865]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Zhang, CH |
| 作者单位 | 1.Acad Sinica, Inst Modern Phys, Lanzhou 730000, Peoples R China 2.Gen Res Inst NonFerrous Met, Beijing 100088, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, CH,Chen, KQ,Wang, YS,et al. Thermal stability of small He-vacancy clusters in 316L stainless steel irradiated with 2.5 MeV He+ ions at 550 degrees C[C]. 见:. |
入库方式： OAI收割
来源：近代物理研究所
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